Sonic Underground
Overview
Sonic, Sonia, and Manic are the offspring of Queen Aleena Hedgehog, the true sovereign of Mobius. As they navigate their childhood, they are relentlessly hunted by Doctor Robotnik and his inept henchmen, Sleet and Dingo. Separated at birth, the triplets have been hidden away to fulfill an ancient prophecy from the Oracle of Delphius, which foretells their reunion with their mother, the defeat of Robotnik, and their eventual return to power as rightful leaders of Mobius. Adventure and danger await as they embark on their quest to reclaim their heritage.
Episodes
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1
Beginnings (Origins, Part 1)
The tale of the Underground unfolds, detailing the collapse of Mobotropolis and the ascent of Robotnik. A significant prophecy delivered by the Oracle...
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2
To Catch a Queen
The Hedgehogs embark on a journey to discover the crucial lessons involved in being a freedom fighter.
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3
Mobodoon
Title: Mobodoon Plot: Sonic, Sonia, and Manic are forced to cut their training short when Robotnik launches an attack on the Oracle, capturing one of...
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4
The Price of Freedom
Title: The Cost of Liberty Plot: Sonia heads to East Mobius to catch up with her friend Mindy at the LaTour Estate. After receiving a trendy watch fr...
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5
Underground Masquerade
Title: Subterranean Deception Plot: Sleet and Dingo hatch a scheme to retrieve the taxes owed to Robotnik from the Duke of Velcronia, intending to po...
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6
Tangled Webs
Title: Deceptive Alliances Plot: The nefarious Robotnik coerces Cyrus, an old companion of Sonic, by taking his father captive. Under duress, Robotni...
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7
The Deepest Fear
Title: The Deepest Fear Plot: While visiting Port Mobius, Sonic, Manic, and Sonia learn about a terrifying sea creature that is causing ships to disa...
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8
Who Do You Think You Are
Rumors suggest that Queen Aleena's royal journals lie hidden beneath a palace in Tashistan. As Sonic and his siblings search the city for the scrolls,...
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9
The Last Resort
As Sonic, Manic, and Sonia wander through the desolate wastelands of Mobius, they discover a picturesque oasis known as Lake Valley Resort. While Soni...
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10
Come Out Wherever You Are
Sonia receives an invitation to a prestigious debutante ball, but first, she and her brothers, Manic and Sonic, have a crucial task at hand. Robotnik ...
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11
Winner Fakes All
Robotnik sets up a track meet to ensnare Sonic, confident that his rival won't resist the challenge of a speed contest. Sonia and Manic, understanding...
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12
A Hedgehog's Home Is Her Castle
The Hedgehogs get a message they think is from their cousin, stating that a castle has been bequeathed to Sonia. Excited by the prospect of turning it...
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13
Artifact
The Hedgehogs manage to snatch away some historical treasures from Robotnik just before he intends to sell them at an auction. Sonic and Sonia bring o...
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14
Bug!
Title: Buzz Off! Plot: A group of Freedom Fighters faces annihilation at the hands of a horde of robotic fly-bots. In his quest to track them down, M...
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15
Sonic Tonic
Title: Sonic Surge Plot: Robotnik devises a new formula called Sonic Surge, designed to boost his speed to match Sonic's, enabling him to finally cap...
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16
Friend or Foe?
The Hedgehogs gather on the Floating Island, hoping to locate their Mother. Meanwhile, Sleet and Dingo also have their eyes on the island, drawn by it...
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17
Head Games
While Sonic enjoys some chili dogs, he discovers a note from his mom urging him to go to Speedster Island. Upon arriving with his brother and sister, ...
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18
When in Rome...
Sonic feels overwhelmed, questioning whether their struggle for freedom is worth it. In response, Sonia proposes visiting Oracle, their spiritual ment...
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19
The Jewel of the Crown
Title: The Crown's Treasure Plot: Robotnik is determined to seize Queen Aleena's precious crown jewel, which shines brightly as it approaches her. So...
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20
Three Hedgehogs and a Baby
Sonic, Manic, and Sonia stumble upon an abandoned infant in an alley and set out to locate the baby's parents. Manic becomes especially attached to th...
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21
Dunes Day
Sonic and his brothers journey to the remote areas of Mobius to enlist a nomadic tribe for the Resistance. Their van breaks down, but a tribesman come...
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22
Mummy Dearest
Sonic, Manic, and Sonia break into Robotnik's stronghold to recover the Hedgehog crest. Once they secure the book, they learn it holds the key to find...
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23
Hedgehog in the Iron Mask
On their latest adventure to locate their mother, the Hedgehogs arrive at a prison tower, where they meet a masked figure claiming to be part of their...
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24
Six Is a Crowd
Title: A Multiverse of Shadows Plot: The Oracle encourages the Hedgehogs to embark on a quest that promises to uncover insights about their destinies...
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25
Flying Fortress (Chaos Emerald Crisis, Part 1)
What begins as a relaxing getaway for Sonic, Manic, and Sonia quickly transforms into a fierce struggle to protect Mobius when Robotnik launches his l...
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26
Wedding Bell Blues
Robotnik reveals his intention to marry Queen Aleena, aiming to claim the throne of Mobius. Disturbed by the idea of their enemy becoming their stepfa...
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27
No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Title: No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2) Plot: Sleet and Dingo manage to flee the Flying Fortress with the coveted Chaos Emeral...
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28
Getting to Know You (Origins, Part 2)
The Hedgehogs embark on a journey to grasp the essential skills of a freedom fighter. Under the guidance of the Oracle, Sonic, Manic, and Sonia receiv...
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29
New Echidna in Town (Chaos Emerald Crisis, Part 3)
Knuckles hesitantly strikes a bargain with Robotnik, agreeing to hand over Sonic and his family in return for the Chaos Emerald that could rescue Mobi...
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30
Harmony or Something (Origins, Part 3)
Manic, Sonic, and Sonia are forced to cut their training short when Robotnik poses a threat to the Oracle and captures a member of the resistance. As ...
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31
Country Crisis
Queen Aleena encourages the Hedgehogs to journey to a Mobius valley to help reconcile two factions of the resistance that have become divided. Meanwhi...
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32
Haircraft in Space
Robotnik enlists the help of the local hairdresser, Doo-bot, to gather intel on those opposing him. During a shampoo session, Sonia falls under Doo-bo...
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33
Healer
Title: Healer Plot: A self-styled inventor arrives in Robotropolis, showcasing a machine that claims to undo the damage caused by Robotnik's robotici...
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34
Sonia's Choice
Title: Sonia's Dilemma Plot: Robotnik has organized a showcase featuring the Royal family's cherished goblets. Anticipating that Sonic, Sonia, and ...
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35
The Big Melt
The Hedgehogs' getaway takes a sudden turn when they hear about Robotnik's newest weapon. They are taken aback as the submarine begins to dissolve the...
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36
Sleepers
While on a mission in a remote area of Robotropolis, the Hedgehogs receive alarming news about the disappearance of several freedom fighters who are o...
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37
Bartleby the Prisoner
Robotnik has unleashed his latest creation, Art, to enforce a ruthless eradication policy in Robotropolis. Art's mission is clear: eliminate everythin...
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38
The Art of Destruction
Title: The Symphony of Ruin Plot: Robotnik unleashes his latest creation, Art, a colossal machine tasked with implementing a ruthless extermination...
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39
The Pendant
The recently uncovered Emerald Peninsula presents an ideal opportunity for Robotnik to expand his empire by enslaving its residents. Sonic, Sonia, and...
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40
Virtual Danger
Title: Digital Peril Plot: Sonic and Manic engage in a virtual reality game to sharpen their piloting abilities. Eager to apply their newfound skills...
